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8018429/1DWP/V3-0/2022-06| SICKADDENDUM TO OPERATING INSTRUCTIONS | GMS840
Subject to change without notice
4 COMMISSIONING OF GMS841 (ATEX/ IECEX) AND GMS842 (
C
CSA
US)
4 Commissioning of GMS841 (ATEX/ IECEx) and GMS842 (
C
CSA
US)
Before commissioning
▸ Make a visual leak check of the enclosure (enclosure cover, cable inlet and gas inlets).
If the enclosure is deformed or damaged: Do not put the enclosure
GMS84x into
operation and secure against unauthorized commissioning.
▸ If the enclosure was opened: Make sure the atmosphere in the enclosure is not
inflammable.
Fig. 7: Power supply unit
1 Before switching on: If work was carried out on the power supply unit: Before switching
on make sure that a correct power supply unit (compliant with CCSAUS or ATEX/IECEx)
has been installed.
2 Seal the enclosure tight, see “Closing the enclosure tight”, page 21.
3 If the enclosure has purge gas connections (option): Put the purge gas supply into
operation.
4 Put the device into operation.
WARNING: Risk of explosion
▸ Do not carry out work on the device in potentially explosive atmospheres.
▸ Only use tools approved for Ex zones.
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